Adding rigid foam to an existing building with faced fiberglass batts
Hi,
I am wanting to add rigid foam insulation to a double-wide modular home. I am in zone six and the existing building is 2×6 construction with faced fiberglass batts. I want to use 2″ ISO foil-faced insulation with Tyvek on the outside, but will this cause breathabilty issues?
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Replies
Joel,
No, it will not cause breathability issues. You are good to go.
Martin, Thank you for your prompt reply appreciate it!
Joel, do you have poly sheeting in addition to the batts, or is the kraft facing the only vapor retarder?